Electric switch.



C. J. KLElN.

ELECTRiC SWITCH.

APPLICATION FILED JUNE I7. 1911.

Patented Nov. 28, 1916.

2 SHEETSSHEET 1.

6726456125 fjjZaz'n,

l [7 91 flax/ J1 or. i

C. J. KLEIN.

ELECTRIC SWITCH. a APPLICATION FILED JUNE 17; 1911.

. Patented Nov. 28, 1916.

2 SHEETS-SHEET 2.

I 14 I l W 14 I /j4 /Ji f ;4/.7fl ijiiji: J4 I I it if i 1 rf '16 jm 14 77 I I II II I I 77 Z 1y j 97 )5 19 had to the ucconiip'auying .switcheeof the seificontuineai unit type defv meet "ye T TA l ABLE-coe ire" Milwaukee in the county of iiiiweukee ei d State oi ii isoonsimhzwe Invented new and useful Improvements iii Electric Switches, .of WillQil the following s u i'uii cleui', con; C186, and exact description, reference being drawing, forming part of thies 'ieoification. My It 1110.2? espeeialiy relates to electric scribed in my co-p'ending eppiicetioi Sei'ial 630,889 filefi. Mayfiist, mil/patented August 10,1. 21.5,N0. 1,1495%. Among the objects; of my invention is'to provide A11 improved electric switch.

further object of my invention is to pi'oviiieu i improvedseitcontained switch unit arranged cuits.

Other objects and ecivmituges of my ,im proved construction will hereinafter appear,

I In the accompanying drawings I have for to control a piui'eiity of cirpurposesv of illustration shown one fonu which my invention may assume. lily m1 vention is'not, however, limited in itssp piication to this form but may nous other terms.

in the views of the cireWing:-' Figure 1 shows a" perspective View of the self-con 'tei ied switch meeiieuism. Fig. 2 She-Wee top plan View ot-the switch mechanism in positionfon, or base. Fig. 3 shows it partial central sectioneiview of the switch mechw nism in posit on-me; suitable cesing. 1 3% 4. shows" a perspective ViBW' of the switc 'contactor. o i

In the views ofthesedmwmge K have] illustrated e self-contained switch mocha,-

'nism'o unit in which'a pue'h button operated snap switch mechanism 1S suppolrtezi,

guided end limited in its movement in a suitable frame comprising end members enoi connecting side nembe s, which is provided with suitable termmeincontacts arranged to close e circuit when the movable contact of? the switch mechanism extreme positions.

is in eitiienof its The switch meehanisin 'wiiiciilieuiploy is preferably of the typedescrlbed w my.

previously gi'uutcd Patent No. 985,421'P51tented February 28, 1911. ifissiliustretedxiu Fig. 1, thisimeehenism inciu des e. 1'ee1pro Soecificatiou oi Letters Petemi invention reiutes to electrieswitchesi 33311 319 Var eeeoeuie u nea Puteuteii m 2e 19m;

A opiieation filed Stone 1?, 3.511. zscriai 230. 633,731.

eating cam member 1 of the conformution cHARL'Ee a"; KLEIN, cue MILWAUKEE? wieoouemg Aeeieuoru we euu'eemue-uemmuu MFG. co, U16 MILWAUKEE, wxsceuem, A QGEPQRATIQNGF u ieoou'exu.

of a double frustum positioned base to base end is provided 'with a centre} threaded shaft-I2 extending through the some, which carries oiiuts end removable push buttons 3 oi a reduced diumete1: A contactor 4,

hereinafter described, isuirangeci to recipa repute 1n one (illQCfiiOH when the cam memher is i-ecipifiocnted in an opposite direction and is arranged-to make 0i break a circuit "w th a quick snap action when 21 garter spring 5, inciosed within the conteotor,

passes over them-est of the care. The, cam

member is preferably supported in a 'pair of end members 6 provideci with centrsii perforations? having. their edges pressed slightly outward as flanges 8, These perforations Thus it is seen that shown in Fig, 3 to foriny;

, ably oi'sucii a diameter that while the push I these end members serve to guide and limit the movement of the operating member of the switch. The free ends of these end members are connected together by tie preferably are provided with reduced ends of the end members and are riveted or otherwise secure to the same to form a frame.

suiating-biocke 1L and in a preferred form the$einsu1uting blocks are provided with slot-e in their upper anti lower surfaces to i'eceiv'ethe reduced ends of the tie piates; These 'insulatinv blocks; are provided with tapered recessesfiz? arranged to permit the com member to reciprocate through the some, and if desired insulating washers 13 may be pioceci around the mouths of these recesses and between the insuieting membears 11 and the flanges 8 on'the end mem- 10 which enter perforations near the ends j '85 In the ends of this frame are supported in I plates which extend between the same and gage their outer edges with a wiping contact. In a preferred form these terminal members are fitted into suitable slots in the inner surfaces of the insulating members 11 and the edges of the members 11 adjacent the same are cut away to permit the free movement of the contactor. Each of the terminal contacts is preferably provided with a pair of shanks 15 which extend through the members .11 to the opposite side of the same. In a preferred form the terminal contacts are secured to the insulating members and terminal plates 16 are likewise secured to these insulating members by passing the ends of the shanks 15 through suitable perfm-ations in these terminal plates and then bending over their ends as shown in Fig. 1. The terminal plates 16 are preferably fitted in suitable recesses 17 in the outer surface of the insulating members and on opposite sides of the end members 6. In a preferred form these terminal plates are provided with late ally extending arms 18 carrying binding screws 19 provided with cars 20 to facilitate the connection of the conductors to these binding screws. .As illustrated in Fig. 2 a terminal plate is arranged on each side of the insulating member (3. If desired one circuit may be connected to the binding screws on one insulating member, while another circuit may be connected to the binding screws on the other member. The binding screws on one side of the insulating members however may be connected by a conducting strip 21 preferably riveted to one of the terminal plates and held in position on the other terminal plate by the binding screw. This conducting strip may be connected to the line so that when the binding screws on the opposite side of the insulating members are connected to branch circuits, a conductor connected to the terminal of the strip 21 would serve as a common'conductor for either of the two circuits.

In Fig. t I haye illustrated a perspective view of one form of cont actor adapted to use in this switch. This contactor preferably comprises two sheets of metal arranged in parallel planes and spaced apart from each other. Both of these sheets are provided with central perforations of a suilicicnt size to permit the cam member to move through the same. ()ne of these sheets is bent backward at its sides to form rounded portions 22 and is then bent forward sub stantially at right angles to its body portion to form contact surfaces 2!) preferably having out turned edecs H. In a preferred form the rounded po tior 22 is cut away as at 25. The other sheet of the contactor is provided with a similarly formed rounded portion :26 with cut away portions 27 on opposite sides of the same and contact surfaces 28 similar to the contact surfaces :23

but extending in an opposite direction.

When the contactor isassembled as shown in I ig. l the rounded portions 26 of one of the members fits within the cutaway por tions of the other member so that pins 29 may be passed down through the rounded portions to connect the parts to form a contactor which has contact surfaces extending in opposite directions so that it may make a circuit when in either of its extreme positions. The pins 29 are preferably formed, of insulating material so that the parts of the contactor are insulated from each other. Further, in order to properly insulate the garter spring 5 which is arranged to be inclosed within the contactor, an insulating strip 30 having a suitable perforation corresponding to and registering with the perforations in the confactor may be placed within the same and may be provided with extensions 31 which eXtend between the rounded portions 26 and the back of the contact surfaces 23 tln'oughthe cut away portions 25 to insulate the two parts of the contartor and also space the same apart.

In Figs. 2 and 3 I have illustrated my improved switch unit as applied to a surface switch. As illustrated in these figures a base 32 preferably of insulating material is provided with a central recess or chamber 33 arranged to receive the unit. When mounted in this chamber one of the tie plates 1) is preferably placed flat upon the-bottom of the recess as'shown in Fig. 3. and secured to the same by a suitable screw 3% engaging in a threaded perforation in the tie plate, located between the insulating members 11. In a preferred form this screw has its head resting in a suitable recess in the bottom of the base 32. In order to accommodate the protruding ends of the end members (3, suitable recessesilfr are preferably provided in the bottom of the 'cham ber '33, and in order to accommodate the flanged portions of the end members the end walls of the chamber 33 may be cut.

' away as at 36. In order to. permit the conductors to pass-to the binding screws, suit-- able vertically extending ilccesses 37 may be provided in the corners of the base leading to the binding screws and in order to permit the base to be secured to a suitable support, suitable-vertically extending recesses 38 may be provided between the recesses 37 on each. side of the base. If desired a cover may be provided which is adapted to fit over and inclose the switch mechanism and rest upon suitable Shoulders 30 around the edge of the base; This cover may be formed of insulating material if desired, or may consist of a sheet metal top or cap 40 provided with an insulating lining 41 which is fitted within the same as shown in Fig. 3. in order to permit; the cover to be slipped over the push buttons when "able and 'feplzuzen'blo'is desired.

the switch mechanism employed is .eniviregly. :self-conlainerl .qonnecfisions fur the same; and is sax'm'zngetl 82s? AVAILABLE 0GP? the switch meblmnism 19in position on the base, suitable slots 42 maybe p'ronded 111 RS opposite .emls, and in 0211 1 tnnsclu n the,

cover a suitable 'srn'nw 43 may extnngl through {lie 11mm and ngage in a threaded perfmnfinn in the nppm lie plate 3 between file end members 6'] If desired a suitable insulating washer 4% may be carried on this screw between the, cover 'and the tie plate.

\Vhen it is desired (to operate the; switch all that it is necessary to 10 isq'x; push in one of the pl'lslybuttons 5 to throw the contactor 4 to one of 1b; extremeposltions.

As soon as the spring zi, housed within the contactor, passes over the crest of the cam 1 the contacts!"isthmwn withi a quick snap action to enepf its limits 1? travel against. cnenf the em of termnmls H. In

erder to make thenther circuit of the switch,

the contactor may be nmm toils opposite position in engagemenfi with the op-positsef: 0f terminals by simply pushing intl1e,:.pposits push bait-on. It is of C(Hllbxf()bVlOllStliilt 311% circuit ccnneclinns made to the \nrinus terminals may bgwidely varied and that one 01' more circuits becontznlleal as desired, 0: that a three wire circuitrnziy be radil y consmiled by connecfiing a comlnctor to the ter minal of the conducting strip 21 nnd'prm'id mg other conductors connected In separate branches 0f a' circuxt lib-the temnnal ylntes 16 on the opposite sirlesjofthe innulaling members-11. I v

Ryan}; improved consrucqlon 1 nave prounitary switch mechanism madily 'rernnv- Further,

marrying complain; nnminal 'to limit the movement of its spa-grating g'lnris so that 110 undue strain may hymen ted unon these parts; Furthertlae switch mecha ism is 0f a decidedly convenient cnnstrnction which may be readily ancl cheaplymanufac- While I have infihis 'zipplicntion described onus specific farm which my lnventinn may 1E m n he 21ml 0m 1131: To which nil'ap im'enticn isnnb limited either may nssmm: z'nxionn 'utlinz forms and be adapteul to various; ntlm u'rsesy ll 'hnl: l clanm an aura lJjy Ln-liars Patient is as followsz- 1., in an elesiaiis switch, a. snag) switch thing point switch unit Whiclrmay be readily-wanted in wluwevenii is (lesireii m cgmtzol a plurality 0f circuits and compact;

inc'loslng said nnmennrl terminalcnnmcts; for a hers to form new nnddfiire to semoegzzn 1 an mclmnism, and mmllers for limiting and guiding the movement of its nwmting member'. lie plates comma-ting (lliLQEEMlF-Of said (.mdnwmhers to form n unitary frame ,a-ml a plurality of sets ("if terminal (lmltlci; carried,

7 arranged in he betn cvn Said and members angmgml by snnl switch mu :lnm:-sm.

2; In an electric switch, :2 snap switch nm-lzzmism, and members {ll'l'ill2{l,'( (l"0 guide mullmnt the movement 01" the operating member ilwl'wf. he

mliiy of terminal (wmtncis luwltml in 0ppn- 51w ends of sand fruung and :ycmnluutarm;

st'z'ip inllpvmlml: of the'switclx .n'ieclmnism' cmmeutmg .voybun 0i; snul c-nntncls.

l 3. In an elevlxnu:

switch, a mslx bufiton anal switch melmnism, end" n'wmlfwrs ai s'anged in snppurt and guide the dpemting znvmllvr-nf the name and limit tlmmuvmnent "of the sun-1c tie plates riveted to the. ends of said 9nd mcmbersnnd arranged to unite said members to fol-n: a unitmyfrmne and terminal.mntmrts cam-Ml by said end menl, burs;

4;. In an elnctric swiicll, a snnp'switch nwclmnlsm, end members all" ranged to limit the mmmnenl of the upornb ing lnemlmz's an the same;lam nates riveted;

to said 01M members t0 fomn anuitnx'y frame i'nqluslng sniff mechanism,

insulating lneinlamcan-mil m the uppusite ends at said frame, and zu'x'nnged t0 permit the, reciprocation 0;"? said ngmznfiing member though the saunn emel, terminal wntncts'cnrrml on lmton g In an electrln snitch 3 gm snap switch mechanism, end zn'ners nzw yanged in lmn'a ti e nwvement 0i" aha sperm mg members 0f the sauna, tin plates x'i vgzted in mid and l'l'wll'lllfili t0 fnnn n unitary frame mechanism, insaulaing man. hem can-36ml. in the oppssifie finals 0f .snid

frame and arranged 0 pnrmil; the recign'onm tion of will opcratingmember 'tlu'mzggh the 0f circuits can-led on snid insnlaing mezm hex-s.

'(L' In combination, ni'pusli lzuiptcn npemtnrl snap switch meclmnism, and members m--' ranged to guide Zlil-illiflilllfill mm'emnnt of the bame, tie plains ri Velez; t0 said end mnnw :1 unitary fnnne, insulating blocks carried in the (ends 411* said fr -"ne lmdng tapered palm-anions arranged to rejc-en 'e the gnu oi the spawning member 0f sa d swlgch miz'clr nun; and insane; for insw lntmg: film opgml; l 3..) n'mnfmr 03'? said switch mevlmn! 5:11 In'mn sand (and n'zembeis.

7.1:! an.- elcctric switch, n rl cign'mmting tuctur nx'ra npfeal to move thereon, and memhers nrx. ;,angn l to. lmnttlle movement ofsuinl cam member and guicleftho sumegtle plates plates cunnwiing sail mvl umnlmrs in form a un xtzu'y frame, :1 plunnnli mum BEST AVAILABLE COP riveted to the ends of said end members to form a unitary frame, insulating blocks carried in the ends of said frame and provided with slots arranged to receive the ends of said tie plates, terminal contacts carried on said insulating blocks on opposite sides of said cam member, said terminal contacts having extensions extending through said insulating blocks. terminal plates riveted to said extensions and a conducting strip coir necting, a plurality of said terminal plates.

8. In an electric switch, acontactor formed of two sheets oi metal having rounded inter-fitting ends aml pins extendin; through said ends.

9. In an electric switch. a contactor formed of two sheets of metal having rounded ends and insulating pins extending: through said ends.

1t). In an electric switch. a eontactor formed of two sheets of metal having rounded interlitting'emls and 'insulating:

pins extending: through said ends.

11. In an electric switch. a sheet metal contactor formed of two sheets of metal arranged in parallel planes and provided with rounded ends and oppositely extending contact surfaces extending: at right angles to-said sheets and connected by insulating pins extending through said rounded ends.

1; In an electric switch. a contactor including two metallic strips having central registering perforations. one of said strips having rounded bent ends near its upper and lower edge and'a cutaway central portion and being provided with forwardly disposed contact surfaces. the other of said strips being provided with rounded. p0r-' tions between its upper and lower edges and contact surfaces disposed oppositely from said previously mentioned contact surfaces and .means for holding the parts of said contactor together passing through said rounded portiens.

1 In. an electric switch, a contactor including two metallic strips having central registering perforations, one of said strips having rounded bent ends near its upper and lower edge and a. cutaway central portion am! being provided with forwardly disposed contact surfaces. the other of said strips being provided with rounded portions between its upper and lower edges and contact sin-laces disposed oppositely from said previously .mentioned contact surfaces, means for holding the parts of said con- \Yitnesses:

ll. L. RoenwicnL. (loco. llarxns.

CHARLES J. KLEIN.

v tactort gether passing'through said rounded 1 P01110115. and an insulating strip between 

